[linux-azure] Important InfiniBand patches for Ubuntu 18.04

Hi, Joe.

We currently keep two copies of the same driver in the linux-azure:

 - drivers/infiniband/hw/vmbus-rdma/vmbus-rdma-144.0/ and;
 - drivers/infiniband/hw/vmbus-rdma/vmbus-rdma-142.0/

Maybe we need to revisit that (although I believe the agent relies on that), but do you think the same change applies to both versions?

Also, the bug description explicitly mentions 5.0 and bionic. But do you know if the changes also apply to 4.15?

I don't think we have ND 142 cluster in use, they have all been upgraded to 144. So we only need the patch for ND 144.

This is not needed for 4.15. Ubuntu 16.04 is running older user-mode drivers that don't cause problems.

Thanks for the answers, Long. Do you think we can remove 142 then? We probably can handle that on another bug too.

Patches on the mailing list for review:

https://lists.ubuntu.com/archives/kernel-team/2019-August/103106.html
https://lists.ubuntu.com/archives/kernel-team/2019-August/103107.html

I suggest we can just keep 142 as is. The extra module size on disk is not that bad at 140k.

The original design was to deal with future ND version updates.

This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-bionic' to 'verification-done-bionic'. If the problem still exists, change the tag 'verification-needed-bionic' to 'verification-failed-bionic'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-disco' to 'verification-done-disco'. If the problem still exists, change the tag 'verification-needed-disco' to 'verification-failed-disco'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

This bug was fixed in the package linux-azure - 5.0.0-1018.19

---------------
linux-azure (5.0.0-1018.19) disco; urgency=medium

  * disco/linux-azure: 5.0.0-1018.19 -proposed tracker (LP: #1840803)

  [ Ubuntu: 5.0.0-27.28 ]

  * disco/linux: 5.0.0-27.28 -proposed tracker (LP: #1840816)
  * [Potential Regression] System crashes when running ftrace test in
    ubuntu_kernel_selftests (LP: #1840750)
    - x86/kprobes: Set instruction page as executable

linux-azure (5.0.0-1017.18) disco; urgency=medium

  * disco/linux-azure: 5.0.0-1017.18 -proposed tracker (LP: #1840326)

  * [linux-azure] Important InfiniBand patches for Ubuntu 18.04 (LP: #1839673)
    - SAUCE: Don't wait in hvnd_query_gid after interface is already bound to ND
    - SAUCE: Expose extended attributes for user IB verbs QUERY_DEVICE, CREATE_CQ
      and CREATE_QP

  * [linux-azure] CRI-RDOS | Live migration only takes 10 seconds, but the VM
    was unavailable for 2 hours (LP: #1837661)
    - PCI: hv: Fix a use-after-free bug in hv_eject_device_work()
    - SAUCE: PCI: hv: Fix panic by calling hv_pci_remove_slots() earlier

  [ Ubuntu: 5.0.0-26.27 ]

  * disco/linux: 5.0.0-26.27 -proposed tracker (LP: #1839972)
  * Packaging resync (LP: #1786013)
    - [Packaging] update helper scripts
  * alsa/hdmi: add icelake hdmi audio support for a Dell machine (LP: #1836916)
    - ALSA: hda: hdmi - add Icelake support
    - ALSA: hda/hdmi - Remove duplicated define
    - ALSA: hda/hdmi - Fix i915 reverse port/pin mapping
  * input/mouse: alps trackpoint-only device doesn't work (LP: #1836752)
    - Input: alps - don't handle ALPS cs19 trackpoint-only device
    - Input: alps - fix a mismatch between a condition check and its comment
  * [18.04 FEAT] Enhanced hardware support (LP: #1836857)
    - s390: report new CPU capabilities
    - s390: add alignment hints to vector load and store
  * System does not auto detect disconnection of external monitor (LP: #1835001)
    - drm/i915: Add support for retrying hotplug
    - drm/i915: Enable hotplug retry
  * [18.04 FEAT] Enhanced CPU-MF hardware counters - kernel part (LP: #1836860)
    - s390/cpum_cf: Add support for CPU-MF SVN 6
    - s390/cpumf: Add extended counter set definitions for model 8561 and 8562
  * EeePC 1005px laptop backlight is off after system boot up (LP: #1837117)
    - platform/x86: asus-wmi: Only Tell EC the OS will handle display hotkeys from
      asus_nb_wmi
  * br_netfilter: namespace sysctl operations (LP: #1836910)
    - netfilter: bridge: port sysctls to use brnf_net
    - netfilter: bridge: namespace bridge netfilter sysctls
    - netfilter: bridge: prevent UAF in brnf_exit_net()
  * ideapad_laptop disables WiFi/BT radios on Lenovo Y540 (LP: #1837136)
    - platform/x86: ideapad-laptop: Remove no_hw_rfkill_list
  * shiftfs: allow overlayfs (LP: #1838677)
    - SAUCE: shiftfs: enable overlayfs on shiftfs
  * bcache: bch_allocator_thread(): hung task timeout (LP: #1784665)
    - bcache: never writeback a discard operation
    - bcache: improve bcache_reboot()
    - SAUCE: bcache: fix deadlock in bcache_allocator
  * Regressions in CMA allocation rework (LP: #1839395)
    - dma-contiguous: do not overwrite align in ...

This bug was fixed in the package linux-azure - 5.0.0-1018.19~18.04.1

---------------
linux-azure (5.0.0-1018.19~18.04.1) bionic; urgency=medium

  * bionic/linux-azure: 5.0.0-1018.19~18.04.1 -proposed tracker (LP: #1840802)

  [ Ubuntu: 5.0.0-1018.19 ]

  * disco/linux-azure: 5.0.0-1018.19 -proposed tracker (LP: #1840803)
  * disco/linux: 5.0.0-27.28 -proposed tracker (LP: #1840816)
  * [Potential Regression] System crashes when running ftrace test in
    ubuntu_kernel_selftests (LP: #1840750)
    - x86/kprobes: Set instruction page as executable

linux-azure (5.0.0-1017.18~18.04.1) bionic; urgency=medium

  * bionic/linux-azure: 5.0.0-1017.18~18.04.1 -proposed tracker (LP: #1840324)

  [ Ubuntu: 5.0.0-1017.18 ]

  * disco/linux-azure: 5.0.0-1017.18 -proposed tracker (LP: #1840326)
  * [linux-azure] Important InfiniBand patches for Ubuntu 18.04 (LP: #1839673)
    - SAUCE: Don't wait in hvnd_query_gid after interface is already bound to ND
    - SAUCE: Expose extended attributes for user IB verbs QUERY_DEVICE, CREATE_CQ
      and CREATE_QP
  * [linux-azure] CRI-RDOS | Live migration only takes 10 seconds, but the VM
    was unavailable for 2 hours (LP: #1837661)
    - PCI: hv: Fix a use-after-free bug in hv_eject_device_work()
    - SAUCE: PCI: hv: Fix panic by calling hv_pci_remove_slots() earlier
  * disco/linux: 5.0.0-26.27 -proposed tracker (LP: #1839972)
  * Packaging resync (LP: #1786013)
    - [Packaging] update helper scripts
  * alsa/hdmi: add icelake hdmi audio support for a Dell machine (LP: #1836916)
    - ALSA: hda: hdmi - add Icelake support
    - ALSA: hda/hdmi - Remove duplicated define
    - ALSA: hda/hdmi - Fix i915 reverse port/pin mapping
  * input/mouse: alps trackpoint-only device doesn't work (LP: #1836752)
    - Input: alps - don't handle ALPS cs19 trackpoint-only device
    - Input: alps - fix a mismatch between a condition check and its comment
  * [18.04 FEAT] Enhanced hardware support (LP: #1836857)
    - s390: report new CPU capabilities
    - s390: add alignment hints to vector load and store
  * System does not auto detect disconnection of external monitor (LP: #1835001)
    - drm/i915: Add support for retrying hotplug
    - drm/i915: Enable hotplug retry
  * [18.04 FEAT] Enhanced CPU-MF hardware counters - kernel part (LP: #1836860)
    - s390/cpum_cf: Add support for CPU-MF SVN 6
    - s390/cpumf: Add extended counter set definitions for model 8561 and 8562
  * EeePC 1005px laptop backlight is off after system boot up (LP: #1837117)
    - platform/x86: asus-wmi: Only Tell EC the OS will handle display hotkeys from
      asus_nb_wmi
  * br_netfilter: namespace sysctl operations (LP: #1836910)
    - netfilter: bridge: port sysctls to use brnf_net
    - netfilter: bridge: namespace bridge netfilter sysctls
    - netfilter: bridge: prevent UAF in brnf_exit_net()
  * ideapad_laptop disables WiFi/BT radios on Lenovo Y540 (LP: #1837136)
    - platform/x86: ideapad-laptop: Remove no_hw_rfkill_list
  * shiftfs: allow overlayfs (LP: #1838677)
    - SAUCE: shiftfs: enable overlayfs on shiftfs
  * bcache: bch_allocator_thread(): hung task timeout (LP: #1784665)
    - bcache: never writeback a discard operation
    - bcac...